From edd6f78759fd11667005c1d2431458bb46f34da0 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Tue, 11 Mar 2025 08:51:19 +0900 Subject: [PATCH] mfd: intel_soc_pmic_bxtwc: Use IRQ domain for PMIC devices BugLink: https://bugs.launchpad.net/bugs/2101915 [ Upstream commit 0350d783ab888cb1cb48ced36cc28b372723f1a4 ] While design wise the idea of converting the driver to use the hierarchy of the IRQ chips is correct, the implementation has (inherited) flaws. This was unveiled when platform_get_irq() had started WARN() on IRQ 0 that is supposed to be a Linux IRQ number (also known as vIRQ). Rework the driver to respect IRQ domain when creating each MFD device separately, as the domain is not the same for all of them. Fixes: 57129044f504 ("mfd: intel_soc_pmic_bxtwc: Use chained IRQs for second level IRQ chips") Tested-by: Zhang Ning Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20241005193029.1929139-4-andriy.shevchenko@linux.intel.com Signed-off-by: Lee Jones Signed-off-by: Sasha Levin CVE-2024-56723 Signed-off-by: Koichiro Den Signed-off-by: Stefan Bader --- drivers/mfd/intel_soc_pmic_bxtwc.c | 54 +++++++++++++++++------------- 1 file changed, 30 insertions(+), 24 deletions(-) diff --git a/drivers/mfd/intel_soc_pmic_bxtwc.c b/drivers/mfd/intel_soc_pmic_bxtwc.c index 5fc9d3aa6142..3aa7857271da 100644 --- a/drivers/mfd/intel_soc_pmic_bxtwc.c +++ b/drivers/mfd/intel_soc_pmic_bxtwc.c @@ -231,21 +231,11 @@ static const struct resource tmu_resources[] = { }; static struct mfd_cell bxt_wc_dev[] = { - { - .name = "bxt_wcove_gpadc", - .num_resources = ARRAY_SIZE(adc_resources), - .resources = adc_resources, - }, { .name = "bxt_wcove_thermal", .num_resources = ARRAY_SIZE(thermal_resources), .resources = thermal_resources, }, - { - .name = "bxt_wcove_bcu", - .num_resources = ARRAY_SIZE(bcu_resources), - .resources = bcu_resources, - }, { .name = "bxt_wcove_gpio", .num_resources = ARRAY_SIZE(gpio_resources), @@ -264,6 +254,22 @@ static const struct mfd_cell bxt_wc_tmu_dev[] = { }, }; +static const struct mfd_cell bxt_wc_bcu_dev[] = { + { + .name = "bxt_wcove_bcu", + .num_resources = ARRAY_SIZE(bcu_resources), + .resources = bcu_resources, + }, +}; + +static const struct mfd_cell bxt_wc_adc_dev[] = { + { + .name = "bxt_wcove_gpadc", + .num_resources = ARRAY_SIZE(adc_resources), + .resources = adc_resources, + }, +}; + static struct mfd_cell bxt_wc_chgr_dev[] = { { .name = "bxt_wcove_usbc", @@ -509,23 +515,23 @@ static int bxtwc_probe(struct platform_device *pdev) if (ret) return dev_err_probe(dev, ret, "Failed to add PWRBTN IRQ chip\n"); - /* Add chained IRQ handler for BCU IRQs */ - ret = bxtwc_add_chained_irq_chip(pmic, pmic->irq_chip_data, - BXTWC_BCU_LVL1_IRQ, - IRQF_ONESHOT, - &bxtwc_regmap_irq_chip_bcu, - &pmic->irq_chip_data_bcu); + ret = bxtwc_add_chained_devices(pmic, bxt_wc_bcu_dev, ARRAY_SIZE(bxt_wc_bcu_dev), + pmic->irq_chip_data, + BXTWC_BCU_LVL1_IRQ, + IRQF_ONESHOT, + &bxtwc_regmap_irq_chip_bcu, + &pmic->irq_chip_data_bcu); if (ret) - return dev_err_probe(dev, ret, "Failed to add BUC IRQ chip\n"); + return ret; - /* Add chained IRQ handler for ADC IRQs */ - ret = bxtwc_add_chained_irq_chip(pmic, pmic->irq_chip_data, - BXTWC_ADC_LVL1_IRQ, - IRQF_ONESHOT, - &bxtwc_regmap_irq_chip_adc, - &pmic->irq_chip_data_adc); + ret = bxtwc_add_chained_devices(pmic, bxt_wc_adc_dev, ARRAY_SIZE(bxt_wc_adc_dev), + pmic->irq_chip_data, + BXTWC_ADC_LVL1_IRQ, + IRQF_ONESHOT, + &bxtwc_regmap_irq_chip_adc, + &pmic->irq_chip_data_adc); if (ret) - return dev_err_probe(dev, ret, "Failed to add ADC IRQ chip\n"); + return ret; ret = bxtwc_add_chained_devices(pmic, bxt_wc_chgr_dev, ARRAY_SIZE(bxt_wc_chgr_dev), pmic->irq_chip_data,